Junction-box.



No 799.183. PATENTED SEPT JZ, 1905.

L. H. NIELSEN.

JUNCTION BOX.

APPLICATION FILED JAN. 16, 1903'.

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UNITED STATES PATENT OFFIOE.

LUDVIG H. NIELSEN, OF NEW YORK, N. Y., ASSIGNOR TO MARK SIMONTON,

' OF COLUMBUS, OHIO.

JUNCTION-BOX.

Specification of Letters Patent.

Patented Sept. 12, 1905.

To all whom, it may concern:

Be it known that I, LUDVIG H. NIELspN, a citizen of the United States,and a resident of the city of New York, borough of Brooklyn, in thecounty of Kings and State of New York, have invented a new and ImprovedJunction- Box, of which the following is a full, clear, and exactdescription.

This invention relates to improvements in junction or outlet boxes forelectric wiring,

an object being to provide a junction-box that may be readily adapted towalls, partitions, ceilings, or floors of difierent thicknesses, andalso to provide a simple means whereby the box may be leveled orstraightened in walls, partitions, ceilings, or floors having irregularsurfaces, and still further to provide a means for attaching a fixturethat will not only reduce the cost of production, but will facilitatethe manipulation of wiring, and consequently reduce the amount of laborfor installing the devices.

1 will describe a junction-box embodying my invention and then point outthe novel features in the appended claims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures.

Figure 1 is an end view of ajunction or outlet box embodying myinvention. Fig. 2 is a section on the line a: as of Fig. 1. Fig. 3 is aperspective view of the box. Fig. 4 is a face view of afixture-supporting bar used in connection with the box. Fig. 5 is asection on the line 3 y of Fig. 4:. Fig. 6 is a perspective view of afixture-receiving nipple used with the bar. Fig. 7 is an end viewthereof, and Fig. 8 is a section showing the bar and nipple together.

Referring to the drawings, 1 designates the body of the box, designed tobe placed in a wall, partition, ceiling, or floor and opening either atone side or both sides thereof. has one or more openings through whichwires may pass to the interior. On each end of the body is a cover 2,theflange portion of the cover being ,sufliciently long to permit of aconsiderable lengthwise adjustment of the box to This body passed tomanipulate the wires in the box, and surrounding the opening is a flange4 for the purpose of bringing the opening flush with the plaster orother finish line. The covers are held in position by means of screws orbolts which engage in tapped lugs situated in the body. I prefer to usefour screws, of which two opposite screws 6 engage against the innersurface of the cover, while the heads of the two other opposite screws 5engage the outer surface. 'hile the tapped lugs are shown in thecorners, they may be placed at the sides, and in some cases where fourscrews will not be suitable any other number of screws engaging incorresponding lugs may be substituted. By this arrangement the cover orbox may be adjusted to considerable irregularities of the wall-surface,and as a further means for leveling or straightening the boX 1 provideeach cover with outwardly-extended wings 7, which will bear against thewall-surface so as to engage tightly thereon. By this means the box mustof necessity be approximately straight even without adjustment, thewings preventing the box being set in any other than its properposition.

Extended across the opening 3 of a cover and removably connected to thecover is a fixture-supporting bar 8, and at the center of the bar is aring 9, in which the interiorlythreaded nipple 10 is placed, this nipple10 being designed to receive a fixture for an electric lamp or the like.This nipple is insulated from the bar by means of insulating material11, and to firmly hold the nipple in place the inner wall of the ring 9is concaved, as indicated at 12, and the nipple hascorrespondingly-shaped lugs 13. After placing the nipple in the ring theinsulating material in a plastic state is forced between the nipple andthe inner wall of the ring and hardened by any suitable process.

It has been customary to support a stud or boss in the back of the boxby means of screws or bolts, and to this stud or boss a fixture isconnected and supported by means of an insulating-joint and a so-calledhickey, which is inserted between the insulatingjoint and the fixtureproper for the purpose of bringing the wire out of the fixture-stem.

By means of my invention the fixture-insulating support takes the placeof the three devices enumerated above, thus confining them all into one,and therefore the fixturesupport embodying my invention is much simplerand is obviously of much less cost.

Having thus described myinvention, I claim as new and desire to secureby Letters Patent 1. A junction-box comprising a body, an adjustablecover therefor, diagonally opposite screws passing through the cover andengaging with the box, diagonally opposite screws engaging with the boxand engaging with the inner surface of the cover and wings extendedlaterally from the cover at two opposite sides and between the screws ofsaid sides.

2. A junction-box comprising a body portion, a cover therefor having anopening, a fixture-supporting bar removably connected to the cover andextended across said opening, a ring portion in said bar, the inner wallof said ring portion being concaved, an interiorly-threaded nipplehaving lugs corresponding substantially to the shape of said inner wall,insulating material between said nipple and ring, leveling devices forthe cover whereby the cover may be moved outward and in ward axially ofthe box, and laterally-extended wings at the opposite sides of the coverbetween the leveling devices.

3. A junction-box comprising a body portion, a cover therefor having anopening, a fixture-supporting bar removably connected to the cover andextended across said opening, a ring portion in said bar, the inner wallof said ring portion being concaved, an interiorly threaded nipplehaving lugs corresponding substantially to the shape of said inner wall,insulating material between said nipple and the ring leveling devicesfor the cover, and laterally-extended wings at opposite sides of thecover between the leveling devices. I

1. The combination with an outlet-box for electric conductors, of aplate having an opening for the passage of the conductors, adjustablescrews engaging the box to support the plate at its under side, openingsaffording access of an instrument for adjustingsaid screws, andindependent headed adjustable screws directly engaging the box andhaving their heads engaging the outer side of the plate in a planeintersecting the plane of location of the firstmentioned screws, thesecond mentioned screws being free on their shanks to permit thedepression of the plate thereon while it is supported by the otherscrews.

5. The combination with an outlet-box for electric conductors, of aplate having an opening for the passage of the conductors, adjustablescrews engaging the box to support the plate at its under side, openingsin the plateover said screws affording access of an instrument foradjusting them, and independent headed adjustable screws directlyengaging the box and having their heads engaging the outer side of theplate in a plane intersecting at right angles the plane of location ofthe first-mentioned screws, the second-mentioned screws being free ontheir shanks to permit the depression of the plate thereon while thelatter is supported by the other screws.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

LUDVIG H. NIELSEN.

Witnesses:

O. R. FERGUSON, EVERARD BOLTON MARSHALL.

